Mulligans
Combo Mulligans
Got to get those early game drops to fight for board control as quickly as possible. If you can maintain board control then you get phenomenal evolutions because you can kill something then evolve it. Brann is there because he's pretty important for Evolve and Master of Evolutions.
Not really meant to be a competitive deck. Just seemed like a fun idea to play around with the new evolving cards (Evolve and Master of Evolution) along with Brann Bronzebeard to raise their mana cost by 2 instead of 1.